Coffee Soluability/Concentration
I need to know: 5 pounds ground coffee soaked in 3.5 gallons of water for 18 hours, unheated. Resulting coffee liquid extracted is x. How do I cut in half the water amount but still get the same amount of extracted coffee soluables into 1.75 gallons of water as would be in original 3.5 gallons?Can't allow reducing water amount by heat evaporation. Thanks in advance, AJR
Best Answer
If this what you are looking for? https://en.wikipedia.org/wiki/Coffee_extraction
There are a couple of graphs in there to help you get your ratio right (and I assume you will need to experiment on your side).
IMO, heating the coffee solution to evaporate the water will result in the degradation of the coffee; maybe render it overly bitter.
Pictures about "Coffee Soluability/Concentration"
Quick Answer about "Coffee Soluability/Concentration"
About 30% of a coffee bean is soluble, and you don't want all the things that can dissolve. The same bean brewed differently will taste different for better or worse. This is why many people brewing espresso take extreme care to control grind size, temperature, pressure, extraction times, and extraction volume.What is the solubility of coffee in water?
Coffee will only fully dissolve in water if you are using instant coffee granules. If you are using ground coffee beans then the coffee will not fully dissolve, only 30% will dissolve and the other 70% will remain intact. Everything is either fully water soluble, fully insoluble, or part soluble.How do you measure coffee concentration?
Take a sample into pipette. Pipette coffee on the refractometer glass so that coffee covers the glass. Wait 10-20 seconds. Close the refractometer's lid and press \u201cGO\u201d until you see the same reading 3 times in a row.Does caffeine have high solubility?
As with all methylxanthines, caffeine has low solubility and is therefore often combined with a wide variety of compounds to form complexes, such as the double salt sodium benzoate, for purposes of enhanced solubility in consumer goods like soft drinks.What solvent is caffeine most soluble in?
Dichloromethane is used as solvent in liquid-liquid extraction because caffeine has higher solubility in Dichloromethane as compared to other solvents.Caffeine extraction and separation
More answers regarding coffee Soluability/Concentration
Answer 2
You cannot really solve that problem with any accuracy. The amount x will vary a lot from coffee batch to coffee batch and also with grind size. The amount extracted at a different concentration will also vary, but the connection is not linear, and extremely hard to calculate.
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: ANTONI SHKRABA production, Andrea Piacquadio, Andrea Piacquadio, Samson Katt